two subdomain in fluid domain does not word (CFX)

maxwellandi · November 24, 2012, 03:55

hello!
2 Subdomain ,Volume force(ff) and volume heat source(h1) are load in fluid domain(slag). if only one Subdomain is load,the result of speed and temperature is what i think right. but, 2 Subdomain are load together, the result is wrong ,why

thanks for any relay!!

------------------
SUBDOMAIN: Subdomain 1
Coord Frame = Coord 0
Location = SLAG
SOURCES:
EQUATION SOURCE: energy
Option = Source
Source = h1
Source Coefficient = 1 [W m^-3 K^-1]
END
END
END
SUBDOMAIN: ff
Coord Frame = Coord 0
Location = SLAG
SOURCES:
MOMENTUM SOURCE:
GENERAL MOMENTUM SOURCE:
Momentum Source X Component = x2
Momentum Source Y Component = y2
Momentum Source Z Component = z2
Option = Cartesian Components

--------------------

ghorrocks · November 25, 2012, 04:09

I have no idea what the problem could be. It might be a bug in CFX. Are you using V14 of CFX?

maxwellandi · November 25, 2012, 20:16

ansys cfx(v13),
there is a bug in cfx?

ghorrocks · November 25, 2012, 21:00

No idea, you would have to report it to CFX to find out. But the first thing they will say is upgrade to the current version - so it is pointless doing anything about it until you update to V14.

evcelica · November 28, 2012, 15:45

Can't you put both sources in one subdomain? Or one as a source in the domain itself and one in the subdomain? Maybe this would fix the problem?

November 24, 2012, 03:55	two subdomain in fluid domain does not word (CFX)	#1
maxwellandi New Member fubin liu Join Date: Apr 2012 Posts: 2 Rep Power: 0	hello! 2 Subdomain ,Volume force(ff) and volume heat source(h1) are load in fluid domain(slag). if only one Subdomain is load,the result of speed and temperature is what i think right. but, 2 Subdomain are load together, the result is wrong ,why thanks for any relay!! ------------------ SUBDOMAIN: Subdomain 1 Coord Frame = Coord 0 Location = SLAG SOURCES: EQUATION SOURCE: energy Option = Source Source = h1 Source Coefficient = 1 [W m^-3 K^-1] END END END SUBDOMAIN: ff Coord Frame = Coord 0 Location = SLAG SOURCES: MOMENTUM SOURCE: GENERAL MOMENTUM SOURCE: Momentum Source X Component = x2 Momentum Source Y Component = y2 Momentum Source Z Component = z2 Option = Cartesian Components --------------------

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
FSI: Pressure and Normal Force don't match with expected values	Geraud	CFX	6	August 21, 2012 15:34
Error (2 isolated fluid regions) with an englobing domain	syens	CFX	2	January 12, 2012 10:55
fluid domain extraction for CHT problems	bhanu1810	STAR-CCM+	3	May 22, 2011 07:26
Theory behind the solid domain rotation in fluid using Bets property	Riken	CFX	0	October 28, 2009 10:51
Fluid - Solid Domain Interface	Daniel	CFX	6	February 15, 2009 18:09

November 25, 2012, 04:09		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 7,007 Rep Power: 60	I have no idea what the problem could be. It might be a bug in CFX. Are you using V14 of CFX?

November 25, 2012, 20:16		#3
maxwellandi New Member fubin liu Join Date: Apr 2012 Posts: 2 Rep Power: 0	ansys cfx(v13), there is a bug in cfx?

November 25, 2012, 21:00		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 7,007 Rep Power: 60	No idea, you would have to report it to CFX to find out. But the first thing they will say is upgrade to the current version - so it is pointless doing anything about it until you update to V14.

November 28, 2012, 15:45		#5
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 312 Rep Power: 5	Can't you put both sources in one subdomain? Or one as a source in the domain itself and one in the subdomain? Maybe this would fix the problem?